It can take a while for the Ingress client to start. There's an initial loading screen, followed by the "acquiring user" screen, followed by a few seconds of waiting for the client to determine my position. Is there anything that can be done to cut down on all of that startup time?
Note: I'm providing my own answer below, but I hope that won't dissuade anyone from also answering.
Best Answer
The "Ingress Wake" app works like a wrapper around the Ingress app to keep it active even when the screen is locked.